"The contractor was dumping bark and the apparatus that he was driving got stuck up on a bark and as you know with the California emissions the converter probably got very hot, set the bark on fire, which then spread to the grass," Williams said.

"The terrain is actually in our favor also because it's very flat. It's not very hilly so it's making it easier for us to get our forward drive apparatus out there to move around the scene a little bit faster," Williams said.